Positive feed fountain paint brush



y 1936' N. OLESEN 2,040,327

POSITIVE FEED FOUNTAIN PAINT BRUSH Filed March 5, 1934 zzz 53 24AIITORNEY Patented May 12, 1936 UNITED STATES PATENT OFFICE v rosary;01:31:) 2:12:13; F211;: Bail Application March 5, 1931, Serial N0.714,117

1 Claim.

This invention relates to paint brushes, and more particularly to apositive-feed fountain paint brush.

The present invention provides novel means to overcome certainlimitations inherent in paint brushes of this character in which thepaint is generally fed to the brush under air pressure from a reservoirthat is-usually placed-at some distance from the painter. Under suchconditions I the flow of paint is uncertain because the air pressurefluctuates; furthermore, unless there is another person present to pumpthe air the painter has to stop painting and attend to it, probablyhaving to climb up and down ladders to do so.

Another limitation that has militated against the general use of suchbrushes is that unless they I are cleansed promptly after use the paintremaining in the tubes and other portions of the brush sets hard andmakes it extremely difllcult to restore the brush to working order.

An object of this invention is to provide a Y adapted by forwardmovement to feed paint to.

said brush, and by backward movement to suck paint from said hose backinto the reservoir, and

thus prevent loss of paint.

A further object is to provide a positively-fed,

manually-operable paint brush of the class described, wherein the paintenters the brush at-a right angle to the bristles through a tube whichpasses transversely clear through the brush, the receiving end of saidtube being arranged for connection with said hose, whereas the far endthereof is provided with a plug. By removal of the hose connection andremoval of the plug hardened paint if present can be readily cleaned outof said tube, drilled out if necessary by a dril passing completelythrough the brush.

Another, very important object is to provide a series of distributionoutlets suitably spaced apart on the lower side of said tube, the outletnearest the intake end of the tube being smallest,

the others increasingly larger as they approach 5 the plug end of thetube, by which arrangement a more uniform flow of paint is haddownwardly through said openings.

A further object is to provide a flexible conduit extending suitablydownward from the solid 55 structure of the brush so as to include saidof Figures 1 and 2.

distribution outlets, and having hookless fasteners in spaced relationto each other across the conduit adjacent its lower end, said fastenersbeingadapted to confine the lower end of said conduit into a series ofpassages for the uniform outflow of paint. g

Other objects will appear as the nature of the invention is betterunderstood, andthe same consists in' the novel "form, combination, andarrangement of parts hereinafter more fully de-- scribed,'shown in theaccompanying drawing, and claimed.

In the drawing, wherein like reference characters indicatecorrespond.ing parts throughout the views: V

,Figure lis a section'taken through the paint brush'of: my invention onthe line I-I of Figure 2.

FigureZ is a section taken on the line 11-11 of a 1. v. Figure 3 is asection taken on the line III-III Figure 4 is a fragmentary elevationaldetail .showing'the plug assembly. Figure 5 is a perspective view of mycomplete apparatus.

In carrying out my invention and having reference to Figures 1 and 2, Iprovide the brush B, consisting of the handle portion 8 which isintegral with the head ill, and preferably of wood. The head is reducedall round to form the tongue I l thereby providing a flat groundfor thebristles I I 2, to bed on, and the shoulder i3 extending all round thehead for the upper ends of the bristles to abut against. The band M, asis well shown in Figure 3, encircles the upper end of the brush, beingsecured by brads as l5.

The tongue H is perforated through its major axis, at a right angle tothe longitudinal axis of the brush to receive the tube It, which is adrive-fit therein. Having reference to Figures 1 and 4 it will be notedthat the left-hand end of said tube is internally threaded to receivethe plug ll, being suitably countersunk to engage a turnkey with whichto screw the plug in or out, said tube end being externally threaded toengage the circular nut i8 countersunk into the band It and providedwith the holes I! adapted to engage a suitable pronged spanner, notnecessary to show as it forms no part of the present invention.

The right-hand end of the tube It is internally It is externallythreaded to engage thenut 21 which is similar to the nut l8, and it willbe noted that the band I4 is suitably countersunk to seat saidrespective nuts. By this arrangement it will be understood that byproviding the tube l6 as a drive-fit in the tongue I I, and bytightening the respective nuts l8 and 23 the tube is held firmly againsteither rotary or axial displacement.

From about the level of the lower portion of the tube It the tongue llat the portion 24 is formed wedge-shaped to incline the upper portionsof the conduit member 25 together, said conduit is substantially asection of light flexible hose, which may well be of cotton or the likethat will yield nicely during the act of painting.

The upper end of said conduit fits up all round the portion 24 and issecured thereto by tacks as 26, the lower end of said conduit is broughttogether detachably at spaced distances apart by hookless fasteners as21.

Reference being had to Figures 1 and 2 it will be noted that the lowerwall of the tube It at points within the upper end of the conduit 25 isperforated at the three points 28, 29 and 30, which is illustrative as agreater or lesser number of perforations could obviously be employed.The portion 24 is provided with the vertical holes 3 I, 32 and 33corresponding in size, and disposed in registry with said perforations.The perforation 29 is suitably larger than the perforation 28, and theperforation 39 is suitably larger than the perforation 29 to providean-equal flow of paint under the correspondingly diminished pressures atthe perforations 29 and 30.

Figure 5, which shows my complete apparatus with its several partscooperative as a unit, comprises the paint reservoir 34 detachablysecured to the belt 35 by straps as 36 the ends of which are arranged tosnap together by conventional fasteners as 31.

Portions of said reservoir wall are cut away in said figure to exposethe double-acting plunger element 38 actuated to right or left by thescrew 39 engaging a counterpart thread in the cap 40 which is removablyattached to the reservoir end.

When about to operate my apparatus the paint reservoir may be removedfrom the belt by undoing said snaps. The screw is now screwed out anddown to the point of the brush by the means ,disclosed, in a positivemanner. When the operator wishes to cease work a slight reverse turningof said crank sucks the paint that is in the brush and in the hose backinto the reservoir, it being a suction hose that will not collapse. Whennot in use the brush may be hung on the hook 42.

In event the brush should become clogged through neglect the tube l6 canbe freed by removing the plug and the hose fitting 20 which enables adrill or a wire to be passed through the tube, whereas access can begained to the holes 3|, 32 and 33, and to the perforations 28, 29 and 39by unsnapping the fasteners 21, thereby giving full access to the wholeinterior of the brush.

The invention is not to be understood as restricted to the details setforth, since these may be modified within the scope of the appendedclaim, without departing from the spirit and scope of the invention.

I claim:-

A brush of the character described, including a head having aperipherally reduced portion, said reduced portion being surrounded bybrush fibres and having a cross bore therein with lateral ports formingcommunication between the cross. bore and brush fibres, a tube havingexternally threaded ends seated in the cross bore and having lateralports registering with the aforesaid ports with the threaded ends of thetube projecting from the bore into the reduced portion, a nut threadedonto each end of the tube for securing the'same in the bore and engagedwith the adjacent portions of the brush fibres, a band carried by thehead and overlying the reduced portion for retaining the brush fibres tothe head and having clearance openings therein for the nuts on the tubeends, a closure plug for one end of the tube and supply means attachedto the other end of the tube.

NICOLAI OLESEN.

